17 Chlorine

Name : Chlorine
symbol : cl
Atomic Mass : 35.4527 amu
Atomic number : 17
Protons : 17
electrons : 17
Neutrons : 18
classification : Orthorhombic
Density : 293 000 : 3.214 g/cm
color : green

[Bohr Model of Chlorine]

Date of Discovery: 1774

Discoverer: Carl Wilhelm Scheele

Name Origin: From the Greek word khlôros (green)

Uses: Water purification, also in bleach

Obtained From: Salt

Natural State:

Full-size image (76 K)

Melting point : -101 °C
Boiling point: -34.6 °C
Ionic radius : 0.184 (-2) nm ; 0.029 nm (+6)
Isotopes : 4
Electronic shell : [Ne] 3s23p5